UV LED Exposure Box – Summary
Warning - this is a work in progress! You won't be able to just follow these steps and get something that works. Don't follow these instructions.
This article is the final part in my series on building a box for making PCBs from UV-sensitised copper-clad boards. Eventually I’ll cover everything from construction through to developing, etching and preparing for assembly.
All the files are available on GitHub.
|1000mm x 250mm x 6mm MDF||I bought a sheet from B&Q and got them to cut it down to size a bit. Don't get them to cut it to the right size though - their tolerance is about ±10mm. The biggest dimension is about 220mm, so either get them to cut it into 250mm boards, or cut it yourself.|
|Wood glue||To glue the MDF parts.|
|200mm x 100mm x 3mm acrylic||For the windows - glass might be better, I'm finding the acrylic bends a bit much.|
|3||Capacitor||0.1µF ceramic disk||C1, C2, C4||Controller|
|1||Capacitor||0.33µF ceramic disk||C3||Controller|
|2||Connector||2-terminal||P1 on the lightboard (x2)||LED Panels|
|8||Connector||90° Pin-header||P1, P2, P3, SP1||Controller|
|1||Microcontroller||Arduino Pro Mini||U3||Controller|
|Various||Misc||22AWG hookup wire, various colours|
|2||Misc||Stripboard 160mm x 90mm (40 tracks)||LED Panels|
|1||Misc||UV-sensitive copper clad board||Controller|
|57x||Resistor||120Ω||R2, R1-R28 on the lightboards (x2)||Controller, LED Panels|
|168x||UV LEDs||D1-D84 on the lightboards (x2)||LED Panels|
Some of the places I got my info from: